> (Btw the general idea that there are animals that we don’t know about is not remotely far-fetched. A new possum genus was discovered like a month ago.)

I might be totally mistaken but I think most of the times when a new "species" is found is either a) some different genus which a non trained eye would not be able to distinguish from an existing one, or b) some species that lives only in a very difficult to reach place with some very specific conditions (i.e. underwater near volcanoes).

Something so different with so many "sightings" as a Bigfoot? Almost impossible.